public void AppendLinearJoint(LinearJoint.Specs specs, Body body)
		{
			btSoftBody_appendLinearJoint3(_native, specs._native, body._native);
		}
        public void AppendLinearJoint(LinearJoint.Specs specs, Cluster body0, Body body1)
		{
			btSoftBody_appendLinearJoint4(_native, specs._native, body0._native, body1._native);
		}
        public void AppendLinearJoint(LinearJoint.Specs specs)
		{
			btSoftBody_appendLinearJoint2(_native, specs._native);
		}